HubSpot MCP by AdPlug for ChatGPT

io.github.danielpopamd/hubspot-mcp

HubSpot MCP server: 9 tools, every client portal on one connector. Writes preview first.

client:ChatGPT transport:streamable-http

Install HubSpot MCP by AdPlug in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.adplug.app/mcp/hubspot

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs